Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Gregory M Sibenaller, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1184367724

Gregory M Sibenaller, DO is a Family Practice in Mason City, Iowa. Graduated from West Virginia School of Osteopathic Medicine in 2022, 4 years ago. Practices with St Anthony Regional Hospital and Nursing Home, a 48-clinician group and accepts Medicare assignment.

Years since qualifying
4
Trained at
West Virginia School of Osteopathic Medicine
In the registry since
2022
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Mason City, IA

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X

Record details

NPI number1184367724
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 20, 2022
Last updated in NPPESJuly 14, 2025
Certification dateJuly 14, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolWEST VIRGINIA SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 2022 (4 years in practice)
Group practice St Anthony Regional Hospital And Nursing Home — 48 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Mason City